Editora 0.9.10. Archived, so links from that release keep working. Read the 0.18.0 page →
Tool Window: Markdown Lint
tool.markdownLint Show or hide the Markdown Lint tool window listing the active file's lint issues.
How to run it
Open the command palette (M-x in the Emacs keymap) and search for Tool Window: Markdown Lint, then press Enter. It has no default keybinding, but you can bind one in Settings → Keymaps.